Patents by Inventor Robert C. Moffitt

Robert C. Moffitt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Helicopter blade with a tip having a selected combination of sweep, taper and anhedral to improve hover efficiency
    Patent number: 4324530
    Abstract: A helicopter blade of high twist having an improved tip utilizing a combination of sweep, taper and anhedral to improve hover performance by unloading the blade tip and reducing the strength of the tip vortex and displacing that tip vortex away from the following blade surface.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: April 13, 1982
    Assignee: United Technologies Corp.
    Inventors: Evan A. Fradenburgh, William D. Jepson, Robert C. Moffitt